<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<div id="app">
    <h2>{{fullName}}</h2>
</div>

<script src="../../js/vue.js"></script>
<script>
    const app = new Vue({
        el: '#app',
        data: {
            firstName: 'Kobe',
            lastName: 'Bryant'
        },
        computed: {
            /*/!*简写*!/
            fullName: function () {
                return this.firstName + " " + this.lastName
            }*/
            fullName: {
                set: function (newValue){
                    const names = newValue.split(' ');
                    this.firstName = names[0];
                    this.lastName = names[1]
                },
                get: function (){
                    return this.firstName + " " + this.lastName
                }
            }
        }
    })
</script>

</body>
</html>